-
Now Playing: Trump is expected to declare a national emergency
-
Now Playing: President Trump declares national emergency for border wall funding
-
Now Playing: SPECIAL REPORT: President Trump declares national emergency for border wall funding
-
Now Playing: Stacey Abrams reflects on campaign loss
-
Now Playing: President Trump declares national emergency and claims $8 billion to secure border
-
Now Playing: Trump declares national emergency over border wall funding
-
Now Playing: Scientist born in China accused of stealing trade secrets
-
Now Playing: White House press secretary Sarah Sanders says she was interviewed by Mueller team
-
Now Playing: US sanctions top Venezuelan security officials as Maduro digs in
-
Now Playing: Supreme Court agrees to hear 2020 census citizenship question case
-
Now Playing: Video shows arrest of Texas man in 3D-printed gun case
-
Now Playing: Judge: Trump's former campaign chairman lied to the special counsel team
-
Now Playing: 21 Savage released on bond by Immigration and Customs Enforcement
-
Now Playing: Rep. Ilhan Omar responds to attack from Trump
-
Now Playing: Susan Collins 'disappointed' Trump will declare national emergency
-
Now Playing: One-on-one with EPA Administrator Andrew Wheeler
-
Now Playing: Countdown to another possible govt shutdown as new border deal hits snag
-
Now Playing: William Barr confirmed by Senate to become attorney general
-
Now Playing: McConnell: Trump will sign border bill, declare national emergency
-
Now Playing: SPECIAL REPORT: President Trump to declare national emergency